Cable reel for blasting mines



July 28,1936. 5. SHING LETON I v CABLE HEEL FOR BLASTING MINES FiledJuly 1'6, 1954 Bmaentor 1 if g/zz'izz z 022 Gttornegq Patented July1,936

2,049,086 CABLE REEL yon plasma MINES Sanford Shingleton, EdgemontFalrmont, w. Va. Application July is, 1934, Serial No. 725,475

4 Claims.

This invention relates to a reel, particularly adapted for use inconnection with electric wires used in blasting coal and other material,my particular object being a production of a reel of this character thatwill conduce to safety and convenience in handling.

Another object of the invention is to provide a reel that may be held ina frame and be easily detached or assembled when desirable.

With these objects in view, which will be developed as the descriptionproceeds, I will now describe my invention in connection with theattached drawing in which:-

Figure l is a part sectional view of a reel and a view of its supportingframe.

Figure 2 is a sectional view of the reel and frame at right angles toFigure 1 and taken upon plane 2-2 of Figure 3.

Figure 3 is an end view of the reel showing a handle and switch used inconnection with the apparatus. I

Figures is a view of the frame and guide rollers with the feel detachedtherefrom.

i is the base of a reel frame. This frame may be conveniently shaped, asshown best in Figure 4, having a base portion formed by bending over theends of the rod or wire I and extending up from the base I is a standard2 terminating at its top nd preferably in a handle 3. It is apparentthat when the frame is set upon the ground or a horizontal support, as'shown in Figure 4, it will maintain the standard 2 in an uprightposition for the support of the reel.

The reel portion may conveniently consist of a 5 cylindrical portion 5and end portions Sand I. I preferably bevel the end portions 6 and l asshown at 3, 9 to direct the electric wiring ion to the reel cylinder 5.

Through the center of the cylinder 5 and end portions .6 and I I providea hollow shaft ll', preferably split at its ends ll-l2 to receive a pinl3 carried by a solid rod 14. This solid rod fits loosely within thehollow rod or sleeve l0 and the rod i4 may be screw threaded at itsends, as

shown at l6, for the reception of a nut I'I. The other end of the solidrod l4 carries the pin l3 in the slot for the split portions "-12 of thesleeve Ii.

it is apparent from this construction that if the reel and the endportions 5 and I be mounted on the sleeve portion II, as shownin Figure2, the solid rod l4 may be slipped through the sleeve portion II. Thepin [3 will pass into the slot portionll-l2 and when the nut I1 isscrewed up the pin l3 will be brought against the end portion 1 andclamp the reel friction-tight to the standard 2.

Extending from the standard 2, I may provide an arm 20 having a secondarm 2| pivoted thereon at 22, said arm 2| having at its end a roller 523 to bear upon the reel 5 to produce friction enough to prevent thereel from unwindinig too readily. A spring 24 mounted on the arm 20 maybe arranged in well known manner to hold the arm 2| and the roller 23 inthe position shown 10 in Figure 1. i

I preferably provide rollers 24a to guide the electric wire l0 as it isbeing rolled up on the reel. These rollers may conveniently be held by arod 26 fastened as by pins 28. l5

Attached to one end of the reel are brackets 29-23 spaced apart at theirinner ends to receive a handle 30 pivoted at 3| between said brackets29-29. Above the brackets, as shown best in Figure 3, are terminals35-35, the terminals 20 terminating in upturned ends between which thelever or handle 30 may fit closely and to guide the handle 30 betweenthe upturned ends of the terminals 35-35 I may provide a second set ofguide brackets 38-38. The end portion I may be 5 provided with holes40-43 through which the electric wires may pass and be attached inelectric contacts with the terminals 35-35 by screws, as shown best inFigure 3. The handle. 30 may terminate in a' knob 45 for convenience inwind- 0 ing up the wire on the reel.

To those skilled in this art, it is apparent that when the handle 30 isin place. as shown in Figs. 2 or 3, for winding up the cable ID with thewire terminals grounded at 35, the cable is safe. It 35 cannot befired-while the handle 30 is in this position.

When the handle 30 is pulled out from between 35-35 a mine at the otherend of cable I0 is ready to be fired by placing terminals of a 40battery (not shown) to terminals 35-35. Moreover, it is apparent thatthe reel cannot be readily wound up until the handle 30 is in positionbetween the terminals 35-35 and brackets 38-38, as shown in Figs. 2 or3, thus grounding the 45 cable at 35-35 and making it safe again. Whenthe handle 30 is out of position the leverage at the pivot 3| forwinding the reel is so small as to render winding practicallyimpossible.

The rollers 241; will guide the wire In to the reel 5 while the feet ofthe frame will hold the reel in the upright position shown in Figure 2.

When it is desired to detach the reel from theframe, the nut ll maybe-removed from the r01 id and the rod 14 carrying the pin it removedthrough the slot in the end of the sleeve it when all the parts may beseparated.

It is also apparent that by screwing up the nut H the pin may be broughtagainst the end portion I to frictionally hold the reel in one positionon the frame.

Having now describedmy invention, what I claim as new is:

1. A device of the class described. comprising a frame, a reel, a pivotfor attaching the reel to the frame, the reel having an end portion withtwo terminals thereon, electric wires on the reel in contact with theterminals and a handle pivotally mounted to an end of the reel forreeling the same and adapted to electrically connect the terminals wheninserted therebetween.

2. A device of the character. described, comprising a reel having acentral electric wire reeling portion and an end portion, a frame onwhich the reel .is pivoted, a handle pivoted to the outer end portion ofthe reel for winding same, electric terminals on the end portion of thereel and between which said handle may be thrust to form an electricalcontact between the terminals and electric wires attached to saidterminals.

3. A device of the character described. comprising a central electricwire take-up portion having opposite ends larger in diameter thanthecentral wire take-up portion, one of the ends having pivoted thereon alever having a handle thereon for turning the electric wire take-upportion for manipulating the wires on the central take-up portion,terminals on the end portion between which said handle may be thrust,said terminals being electrically connectible to the electric wires.

4. A device of the character described, comprising a frame, a reelpivoted to said trame, said reel having an end portion with twoterminals thereon, electric wires on the reel connected to saidterminals, Ia single movable meansmounted on the reel for winding saidreel, said means adapted to electrically connect said terminals 20 whensaid means is in the reel winding position and to electricallydisconnect said terminals when moved away from the reel windingposition.

SANFORD SHINGLETQN.

